<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--1.引入头部header.html-->
<div id="header"></div>
<!--内容模块--------------------------------------------------->
<div style="width: 500px;height: 500px"></div>
<!--footer模块--------------------------------------------------->
<div id="footer" class="floor"></div>
</body>
<script src="js/index/jquery.js"></script>
<script type="text/javascript" src="js/header/header.js"></script>
<script type="text/javascript" src="js/footer/footer.js"></script>
</html>